12 



lineis tenuibus interruptis numerosis cincta ; anfr. 5 rotundatis ; 

 sutura irapressa : apertura subcircularis ; peristomate anguste 

 reflexo, pallido, extremitatibus approximatis ; fauce livida ; col- 

 umella incrassata, rotundatu. 



Axis Yi5- ; diam. -^^ poll. Desert region east of California. 

 From the collection of Dr. W. Newcomb. 



The texture and coloring is much like that of H. alauda, Fer., 

 but the shell is smaller and more elevated. 



BuLiMUS LEPiDUS. T. parva, plerumque sinistrorsa, vix per- 

 forata, ovato-conica, elevata, polita, citrina ; anfr. 6 convexis, 

 ultimo ventricoso ; sutura bene impressa : apertura subcircularis; 

 peristomate albo, reflexo, ad columellam dilatato, extremitatibus 

 approximatis. 



Axis 1^ ; diam. ^ poll. Mergui Islands. Rev. J. Benjamin. 



A pretty shell, grouping with Iceinis, Adamsii, and moniliferiis, 

 but smaller, proportionally shorter and more ventricose, and dif- 

 fering entirely in coloring, texture, and the broadly rounded form 

 of the aperture. 



BuLiMUS LAUTUS. T. subperforata, oblique ovato-triangu- 

 laris, tenuis, eburnea longitudinaliter rufo-lineata ; suturis palli- 

 dis ; anfr. 6, ultimo ad peripheriam in carinam compresso, subtus 

 versus umbilicum declivi et plicato : apertura oblique triangularis, 

 ad angulura latero-basalem canaliculata ; peritremate expanso, 

 intus incrassato, albo, rosaceo vivide submarginata. 



Length, one inch ; breadth, half an inch. From the mountains 

 of Equador, near Quito ; by Joseph P. Couthouy, Esq. 



A most remarkable and beautiful shell, belonging to the 

 peculiar group of Bulimi, with angulated apertures, found on 

 the Andes, near Chimborazo. The basal angle stands off further 

 from the axis in this than in any other species yet figured. 

 B. semiclausus is banded, the basal angle rounded, the spire less 

 acute. B. Knorri is more elongated, and the basal angle nearly 

 axial. B. murrinus and B. fabref actus are also allied. 



Streptaxis prostrata. T. pupoidea, valde distorta, tenuis, 

 dilute cornea ; anfr. 6, posticis lateraliter appositis, ad periphe- 

 riam acute angulatis, antico subtus glabrato : apertura longior 



